I didnt watch the replay (unlocks all out this week)
What I think is all you have to do is
1) watch drift bible to find out the techniques
2) practice them and be honest to yourself - are you using them correctly
3) look at the racing lines, and try to follow them in your drift
when you think youre good enough - get yourself a drift teacher...
for example - I was taught by SanDer, my friend Big Cheese - by me, and then by SanDer when he changed the XRT to FZ5...
just go around the servers, talk to people, and ask the ones that do it perfectly to help you improve (just do it politely)